/* ============================================================
   ANIMATIONS — Keyframes, Transitions, Scroll reveals
   ============================================================ */

/* ---- Keyframes ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.06); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes shimmer {
  0%   { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes revealWidth {
  from { width: 0; }
  to   { width: 100%; }
}

@keyframes heroParticle {
  0%   { opacity: 0; transform: translateY(100px) scale(0); }
  50%  { opacity: .6; }
  100% { opacity: 0; transform: translateY(-600px) scale(1.5); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ---- Scroll reveal base ---- */
[data-reveal] {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal="up"]    { transform: translateY(40px); }
[data-reveal="down"]  { transform: translateY(-30px); }
[data-reveal="left"]  { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="scale"] { transform: scale(0.88); }
[data-reveal="fade"]  { transform: none; }

[data-reveal].revealed {
  opacity: 1;
  transform: none;
}

/* Stagger delays for groups */
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }
[data-delay="400"] { transition-delay: 0.4s; }
[data-delay="500"] { transition-delay: 0.5s; }
[data-delay="600"] { transition-delay: 0.6s; }

/* ---- Hero animations ---- */
.hero__title   { animation: fadeInUp 0.8s ease 0.2s both; }
.hero__subtitle { animation: fadeInUp 0.8s ease 0.4s both; }
.hero__cta     { animation: fadeInUp 0.8s ease 0.6s both; }
.hero__scroll  { animation: fadeInUp 0.8s ease 0.9s both; }

/* ---- Particle background ---- */
.particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,179,0,.15);
  animation: heroParticle linear infinite;
}

/* ---- Gradient text ---- */
.gradient-text {
  background: linear-gradient(135deg, var(--clr-accent) 0%, var(--clr-primary-lt) 50%, var(--clr-accent) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

/* ---- Floating element ---- */
.float {
  animation: floatY 4s ease-in-out infinite;
}

/* ---- Pulse badge ---- */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* ---- Skeleton / loading state ---- */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

/* ---- Underline draw effect ---- */
.underline-draw {
  position: relative;
  display: inline-block;
}

.underline-draw::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--clr-primary);
  border-radius: var(--radius-full);
  transition: width 0.6s ease 0.3s;
}

.underline-draw.revealed::after { width: 100%; }

/* ---- Counter animation ---- */
.counter-number {
  display: inline-block;
  transition: all 0.1s ease;
}

/* ---- Hero bg animated ---- */
.hero-bg-animate {
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
}

/* ---- Prefers reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}